Additional Percentage Interest Rate Penalty

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- Definition

Agreement Expiration Date

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- Definition

Purchase price per share of common stock offered on each Right, if and when issued.

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- Definition

Contract Effective Date

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- Definition

"Minimum percentage ownership of common stock by any person or group requiring approval of the Company's Board of Directors under its stockholder rights plan.

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- Definition

Maximum amount of payables that may be extended under the Trade Payables Arrangement at any time.

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- Definition

Stockholder Rights Plan, Description

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- Definition

Automatic termination date of stockholder rights plan, unless amended or earlier rights are redeemed or exchanged.

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- Definition

Termination Notice Period

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- Definition

Description of when fee is required to be paid under the Trade Payables Arrangement.

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- Definition

Face amount or stated value of common stock per share; generally not indicative of the fair market value per share.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 30
-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The average effective interest rate during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company before stock transaction.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section H

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Date of subsequent event occurrence or of indication that subsequent event occurred.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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Subsequent Events - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified				6 Months Ended
	Jul. 30, 2011	Jan. 29, 2011	Jul. 31, 2010	Jul. 30, 2011 Subsequent Event New Contract Day	Jul. 30, 2011 Subsequent Event New Contract Stockholder Rights Plan
Subsequent Event [Line Items]
Agreement entry date				Sep. 01, 2011	Aug. 01, 2011
Maximum payables that may be extended				$ 50
Interest rate				1.00%
Agreement effective Date				Sep. 01, 2011
Agreement expiration date				Feb. 29, 2012
Additional interest rate on amounts overdue				2.00%
Interest payment duration				Monthly
Suspension or termination notice period				28
Dividend of one common share purchase right for each outstanding share of common stock, par value	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Stockholders rights plan				Effective August 1, 2011, the Company’s Board of Directors unanimously voted to adopt a stockholder rights plan, dated August 1, 2011, between the Company and Computershare Trust Company, N.A., as rights agent, (the “Rights Plan”) and directed the issuance, and declared a dividend of one common share purchase right (a “Right” and collectively, the “Rights”) for each outstanding share of common stock, par value of $0.01 per share, of the Company outstanding as of the close of business on August 12, 2011.
Minimum percentage of common stock to be acquired with approval of the Company's board of directors				10.00%
Purchase price per common share				$ 24
Percentage Of Ownership Before Transaction				50.00%
Rights Plan termination date				2021-08-01